Gilboa, Ayelet; Namdar, Dvory (2015). «Beginnings of South Asian Spice Trade with the Mediterranean». Radiocarbon57 (2): 275. S2CID55719842. doi:10.2458/azu_rc.57.18562.
Kumar, Suresh; Kamboj, Jitpal; Suman; Sharma, Sunil (June 2011). «Overview for Various Aspects of the Health Benefits of Piper Longum Linn. Fruit». Journal of Acupuncture and Meridian Studies(en inglés)4 (2): 134-140. PMID21704957. doi:10.1016/S2005-2901(11)60020-4.
Kumar, Suresh; Kamboj, Jitpal; Suman; Sharma, Sunil (June 2011). «Overview for Various Aspects of the Health Benefits of Piper Longum Linn. Fruit». Journal of Acupuncture and Meridian Studies(en inglés)4 (2): 134-140. PMID21704957. doi:10.1016/S2005-2901(11)60020-4.
Gilboa, Ayelet; Namdar, Dvory (2015). «Beginnings of South Asian Spice Trade with the Mediterranean». Radiocarbon57 (2): 275. S2CID55719842. doi:10.2458/azu_rc.57.18562.